diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 74cc1611cd..cbaf803ce6 100755
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -2634,7 +2634,8 @@ namespace OpenSim.Region.Framework.Scenes
             List<ScenePresence> avatars = group.GetSittingAvatars();
             foreach (ScenePresence av in avatars)
             {
-                av.StandUp();
+                if(av.ParentUUID == UUID.Zero)
+                    av.StandUp();
             }
 
             SceneObjectPart[] partList = group.Parts;